Finding the Fourth Proportional to 21,323,443.32, 31,984,633.62 and 9,976,587.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,323,443.32 : 31,984,633.62 = 9,976,587.48 : x
2. Step 2: Convert to fraction form
   21,323,443.32/31,984,633.62 = 9,976,587.48/x
3. Step 3: Cross multiply
   21,323,443.32x = 31,984,633.62 × 9,976,587.48
4. Step 4: Simplify right side
   21,323,443.32x = 319,097,495,325,679.12
5. Step 5: Solve for x
   x = 319,097,495,325,679.12/21,323,443.32
6. Step 6: Final answer
   x = 14,964,632.61