Finding the Fourth Proportional to 72,980.35, 100,758.85 and 55,953.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,980.35 : 100,758.85 = 55,953.02 : x
2. Step 2: Convert to fraction form
   72,980.35/100,758.85 = 55,953.02/x
3. Step 3: Cross multiply
   72,980.35x = 100,758.85 × 55,953.02
4. Step 4: Simplify right side
   72,980.35x = 5,637,762,061.24
5. Step 5: Solve for x
   x = 5,637,762,061.24/72,980.35
6. Step 6: Final answer
   x = 77,250.41