Finding the Fourth Proportional to 11,639,256.32, 17,445,834.54 and 4,721,128.00

Step by Step Solution

1. Step 1: Write the proportion equation
   11,639,256.32 : 17,445,834.54 = 4,721,128.00 : x
2. Step 2: Convert to fraction form
   11,639,256.32/17,445,834.54 = 4,721,128.00/x
3. Step 3: Cross multiply
   11,639,256.32x = 17,445,834.54 × 4,721,128.00
4. Step 4: Simplify right side
   11,639,256.32x = 82,364,017,886,546.52
5. Step 5: Solve for x
   x = 82,364,017,886,546.52/11,639,256.32
6. Step 6: Final answer
   x = 7,076,398.66