Finding the Fourth Proportional to 99,300.01, 137,036.68 and 53,981.03

Step by Step Solution

1. Step 1: Write the proportion equation
   99,300.01 : 137,036.68 = 53,981.03 : x
2. Step 2: Convert to fraction form
   99,300.01/137,036.68 = 53,981.03/x
3. Step 3: Cross multiply
   99,300.01x = 137,036.68 × 53,981.03
4. Step 4: Simplify right side
   99,300.01x = 7,397,381,341.82
5. Step 5: Solve for x
   x = 7,397,381,341.82/99,300.01
6. Step 6: Final answer
   x = 74,495.27