Finding the Fourth Proportional to 91,303.86, 136,966.72 and 38,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,303.86 : 136,966.72 = 38,706.50 : x
2. Step 2: Convert to fraction form
   91,303.86/136,966.72 = 38,706.50/x
3. Step 3: Cross multiply
   91,303.86x = 136,966.72 × 38,706.50
4. Step 4: Simplify right side
   91,303.86x = 5,301,502,347.68
5. Step 5: Solve for x
   x = 5,301,502,347.68/91,303.86
6. Step 6: Final answer
   x = 58,064.38