Finding the Fourth Proportional to 118,678,501.76, 177,874,263.48 and 61,139,384.72

Step by Step Solution

1. Step 1: Write the proportion equation
   118,678,501.76 : 177,874,263.48 = 61,139,384.72 : x
2. Step 2: Convert to fraction form
   118,678,501.76/177,874,263.48 = 61,139,384.72/x
3. Step 3: Cross multiply
   118,678,501.76x = 177,874,263.48 × 61,139,384.72
4. Step 4: Simplify right side
   118,678,501.76x = 10,875,123,026,690,366
5. Step 5: Solve for x
   x = 10,875,123,026,690,366/118,678,501.76
6. Step 6: Final answer
   x = 91,635,156.03