Finding the Fourth Proportional to 111,490,801.30, 167,076,769.65 and 77,372,289.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,490,801.30 : 167,076,769.65 = 77,372,289.10 : x
2. Step 2: Convert to fraction form
   111,490,801.30/167,076,769.65 = 77,372,289.10/x
3. Step 3: Cross multiply
   111,490,801.30x = 167,076,769.65 × 77,372,289.10
4. Step 4: Simplify right side
   111,490,801.30x = 12,927,112,123,253,906
5. Step 5: Solve for x
   x = 12,927,112,123,253,906/111,490,801.30
6. Step 6: Final answer
   x = 115,947,790.96