Finding the Fourth Proportional to 101,981.91, 152,949.77 and 38,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,981.91 : 152,949.77 = 38,779.50 : x
2. Step 2: Convert to fraction form
   101,981.91/152,949.77 = 38,779.50/x
3. Step 3: Cross multiply
   101,981.91x = 152,949.77 × 38,779.50
4. Step 4: Simplify right side
   101,981.91x = 5,931,315,411.82
5. Step 5: Solve for x
   x = 5,931,315,411.82/101,981.91
6. Step 6: Final answer
   x = 58,160.47