Finding the Fourth Proportional to 99,663.92, 149,478.60 and 37,321.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,663.92 : 149,478.60 = 37,321.52 : x
2. Step 2: Convert to fraction form
   99,663.92/149,478.60 = 37,321.52/x
3. Step 3: Cross multiply
   99,663.92x = 149,478.60 × 37,321.52
4. Step 4: Simplify right side
   99,663.92x = 5,578,768,559.47
5. Step 5: Solve for x
   x = 5,578,768,559.47/99,663.92
6. Step 6: Final answer
   x = 55,975.81