Finding the Fourth Proportional to 113,674,263.50, 156,864,042.80 and 64,111,674.89

Step by Step Solution

1. Step 1: Write the proportion equation
   113,674,263.50 : 156,864,042.80 = 64,111,674.89 : x
2. Step 2: Convert to fraction form
   113,674,263.50/156,864,042.80 = 64,111,674.89/x
3. Step 3: Cross multiply
   113,674,263.50x = 156,864,042.80 × 64,111,674.89
4. Step 4: Simplify right side
   113,674,263.50x = 10,056,816,512,819,766
5. Step 5: Solve for x
   x = 10,056,816,512,819,766/113,674,263.50
6. Step 6: Final answer
   x = 88,470,478.75