Finding the Fourth Proportional to 99,403,141.84, 137,175,027.90 and 54,748,256.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99,403,141.84 : 137,175,027.90 = 54,748,256.56 : x
2. Step 2: Convert to fraction form
   99,403,141.84/137,175,027.90 = 54,748,256.56/x
3. Step 3: Cross multiply
   99,403,141.84x = 137,175,027.90 × 54,748,256.56
4. Step 4: Simplify right side
   99,403,141.84x = 7,510,093,621,094,359
5. Step 5: Solve for x
   x = 7,510,093,621,094,359/99,403,141.84
6. Step 6: Final answer
   x = 75,551,873.73