Finding the Fourth Proportional to 28,750,131.72, 42,994,210.86 and 21,468,704.76

Step by Step Solution

1. Step 1: Write the proportion equation
   28,750,131.72 : 42,994,210.86 = 21,468,704.76 : x
2. Step 2: Convert to fraction form
   28,750,131.72/42,994,210.86 = 21,468,704.76/x
3. Step 3: Cross multiply
   28,750,131.72x = 42,994,210.86 × 21,468,704.76
4. Step 4: Simplify right side
   28,750,131.72x = 923,030,019,342,525.75
5. Step 5: Solve for x
   x = 923,030,019,342,525.75/28,750,131.72
6. Step 6: Final answer
   x = 32,105,244.88