Finding the Fourth Proportional to 38,742.69, 58,106.39 and 10,655.50

Step by Step Solution

1. Step 1: Write the proportion equation
   38,742.69 : 58,106.39 = 10,655.50 : x
2. Step 2: Convert to fraction form
   38,742.69/58,106.39 = 10,655.50/x
3. Step 3: Cross multiply
   38,742.69x = 58,106.39 × 10,655.50
4. Step 4: Simplify right side
   38,742.69x = 619,152,579.02
5. Step 5: Solve for x
   x = 619,152,579.02/38,742.69
6. Step 6: Final answer
   x = 15,981.14