Finding the Fourth Proportional to 65,252.96, 90,089.52 and 58,526.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,252.96 : 90,089.52 = 58,526.72 : x
2. Step 2: Convert to fraction form
   65,252.96/90,089.52 = 58,526.72/x
3. Step 3: Cross multiply
   65,252.96x = 90,089.52 × 58,526.72
4. Step 4: Simplify right side
   65,252.96x = 5,272,644,111.97
5. Step 5: Solve for x
   x = 5,272,644,111.97/65,252.96
6. Step 6: Final answer
   x = 80,803.14