Finding the Fourth Proportional to 8,953,109.72, 12,355,307.16 and 4,878,728.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,953,109.72 : 12,355,307.16 = 4,878,728.72 : x
2. Step 2: Convert to fraction form
   8,953,109.72/12,355,307.16 = 4,878,728.72/x
3. Step 3: Cross multiply
   8,953,109.72x = 12,355,307.16 × 4,878,728.72
4. Step 4: Simplify right side
   8,953,109.72x = 60,278,191,885,913.63
5. Step 5: Solve for x
   x = 60,278,191,885,913.63/8,953,109.72
6. Step 6: Final answer
   x = 6,732,654.21