Finding the Fourth Proportional to 57,223,845.05, 78,969,468.50 and 31,118,930.15

Step by Step Solution

1. Step 1: Write the proportion equation
   57,223,845.05 : 78,969,468.50 = 31,118,930.15 : x
2. Step 2: Convert to fraction form
   57,223,845.05/78,969,468.50 = 31,118,930.15/x
3. Step 3: Cross multiply
   57,223,845.05x = 78,969,468.50 × 31,118,930.15
4. Step 4: Simplify right side
   57,223,845.05x = 2,457,445,374,509,346
5. Step 5: Solve for x
   x = 2,457,445,374,509,346/57,223,845.05
6. Step 6: Final answer
   x = 42,944,429.41