Finding the Fourth Proportional to 150,108,955.60, 207,043,569.88 and 137,758,930.15

Step by Step Solution

1. Step 1: Write the proportion equation
   150,108,955.60 : 207,043,569.88 = 137,758,930.15 : x
2. Step 2: Convert to fraction form
   150,108,955.60/207,043,569.88 = 137,758,930.15/x
3. Step 3: Cross multiply
   150,108,955.60x = 207,043,569.88 × 137,758,930.15
4. Step 4: Simplify right side
   150,108,955.60x = 28,522,100,681,105,564
5. Step 5: Solve for x
   x = 28,522,100,681,105,564/150,108,955.60
6. Step 6: Final answer
   x = 190,009,320.68