Finding the Fourth Proportional to 21,830,298.10, 30,607,207.10 and 21,830,298.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,830,298.10 : 30,607,207.10 = 21,830,298.10 : x
2. Step 2: Convert to fraction form
   21,830,298.10/30,607,207.10 = 21,830,298.10/x
3. Step 3: Cross multiply
   21,830,298.10x = 30,607,207.10 × 21,830,298.10
4. Step 4: Simplify right side
   21,830,298.10x = 668,164,455,001,436.62
5. Step 5: Solve for x
   x = 668,164,455,001,436.62/21,830,298.10
6. Step 6: Final answer
   x = 30,607,207.10