Finding the Fourth Proportional to 65,700.45, 98,426.06 and 38,990.00

Step by Step Solution

1. Step 1: Write the proportion equation
   65,700.45 : 98,426.06 = 38,990.00 : x
2. Step 2: Convert to fraction form
   65,700.45/98,426.06 = 38,990.00/x
3. Step 3: Cross multiply
   65,700.45x = 98,426.06 × 38,990.00
4. Step 4: Simplify right side
   65,700.45x = 3,837,631,392.32
5. Step 5: Solve for x
   x = 3,837,631,392.32/65,700.45
6. Step 6: Final answer
   x = 58,411.04