Finding the Fourth Proportional to 124,663,406.16, 172,052,590.56 and 71,739,026.16

Step by Step Solution

1. Step 1: Write the proportion equation
   124,663,406.16 : 172,052,590.56 = 71,739,026.16 : x
2. Step 2: Convert to fraction form
   124,663,406.16/172,052,590.56 = 71,739,026.16/x
3. Step 3: Cross multiply
   124,663,406.16x = 172,052,590.56 × 71,739,026.16
4. Step 4: Simplify right side
   124,663,406.16x = 12,342,885,295,079,608
5. Step 5: Solve for x
   x = 12,342,885,295,079,608/124,663,406.16
6. Step 6: Final answer
   x = 99,009,690.78