Finding the Fourth Proportional to 111,297,606.52, 166,865,697.17 and 74,815,510.47

Step by Step Solution

1. Step 1: Write the proportion equation
   111,297,606.52 : 166,865,697.17 = 74,815,510.47 : x
2. Step 2: Convert to fraction form
   111,297,606.52/166,865,697.17 = 74,815,510.47/x
3. Step 3: Cross multiply
   111,297,606.52x = 166,865,697.17 × 74,815,510.47
4. Step 4: Simplify right side
   111,297,606.52x = 12,484,142,312,497,578
5. Step 5: Solve for x
   x = 12,484,142,312,497,578/111,297,606.52
6. Step 6: Final answer
   x = 112,169,009.77