Finding the Fourth Proportional to 138,078,105.36, 190,552,360.72 and 75,357,635.28

Step by Step Solution

1. Step 1: Write the proportion equation
   138,078,105.36 : 190,552,360.72 = 75,357,635.28 : x
2. Step 2: Convert to fraction form
   138,078,105.36/190,552,360.72 = 75,357,635.28/x
3. Step 3: Cross multiply
   138,078,105.36x = 190,552,360.72 × 75,357,635.28
4. Step 4: Simplify right side
   138,078,105.36x = 14,359,575,300,880,758
5. Step 5: Solve for x
   x = 14,359,575,300,880,758/138,078,105.36
6. Step 6: Final answer
   x = 103,996,033.72