Finding the Fourth Proportional to 91,526.96, 137,031.60 and 58,164.32

Step by Step Solution

1. Step 1: Write the proportion equation
   91,526.96 : 137,031.60 = 58,164.32 : x
2. Step 2: Convert to fraction form
   91,526.96/137,031.60 = 58,164.32/x
3. Step 3: Cross multiply
   91,526.96x = 137,031.60 × 58,164.32
4. Step 4: Simplify right side
   91,526.96x = 7,970,349,832.51
5. Step 5: Solve for x
   x = 7,970,349,832.51/91,526.96
6. Step 6: Final answer
   x = 87,081.99