Finding the Fourth Proportional to 105,165,921.04, 145,129,032.56 and 58,756,174.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,165,921.04 : 145,129,032.56 = 58,756,174.96 : x
2. Step 2: Convert to fraction form
   105,165,921.04/145,129,032.56 = 58,756,174.96/x
3. Step 3: Cross multiply
   105,165,921.04x = 145,129,032.56 × 58,756,174.96
4. Step 4: Simplify right side
   105,165,921.04x = 8,527,226,828,870,897
5. Step 5: Solve for x
   x = 8,527,226,828,870,897/105,165,921.04
6. Step 6: Final answer
   x = 81,083,555.82