Finding the Fourth Proportional to 69,680,922.64, 104,514,626.28 and 21,159,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,680,922.64 : 104,514,626.28 = 21,159,196.72 : x
2. Step 2: Convert to fraction form
   69,680,922.64/104,514,626.28 = 21,159,196.72/x
3. Step 3: Cross multiply
   69,680,922.64x = 104,514,626.28 × 21,159,196.72
4. Step 4: Simplify right side
   69,680,922.64x = 2,211,445,537,575,801.75
5. Step 5: Solve for x
   x = 2,211,445,537,575,801.75/69,680,922.64
6. Step 6: Final answer
   x = 31,736,743.05