Finding the Fourth Proportional to 101,148.76, 139,617.78 and 58,699

Step by Step Solution

1. Step 1: Write the proportion equation
   101,148.76 : 139,617.78 = 58,699 : x
2. Step 2: Convert to fraction form
   101,148.76/139,617.78 = 58,699/x
3. Step 3: Cross multiply
   101,148.76x = 139,617.78 × 58,699
4. Step 4: Simplify right side
   101,148.76x = 8,195,424,068.22
5. Step 5: Solve for x
   x = 8,195,424,068.22/101,148.76
6. Step 6: Final answer
   x = 81,023.48