Finding the Fourth Proportional to 61,486.72, 91,996.72 and 38,055.04

Step by Step Solution

1. Step 1: Write the proportion equation
   61,486.72 : 91,996.72 = 38,055.04 : x
2. Step 2: Convert to fraction form
   61,486.72/91,996.72 = 38,055.04/x
3. Step 3: Cross multiply
   61,486.72x = 91,996.72 × 38,055.04
4. Step 4: Simplify right side
   61,486.72x = 3,500,938,859.47
5. Step 5: Solve for x
   x = 3,500,938,859.47/61,486.72
6. Step 6: Final answer
   x = 56,938.13